package com.lms.netty.demo;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.CharsetUtil;

/**
 * @Author: 李孟帅
 * @CreateTime: 2020-06-16 10:36
 * @Description:
 */
public class NettyClientHandler  extends ChannelInboundHandlerAdapter {
    /**
    * @Author 李孟帅
    * @Description 当通道就绪就会触发该方法
    * @Date 2020/6/16
    **/
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("client:"+ctx);
        ctx.writeAndFlush(Unpooled.copiedBuffer("hello ,server !!! ", CharsetUtil.UTF_8));
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
       cause.printStackTrace();
       ctx.close();
    }

    /**
    * @Author 李孟帅
    * @Description 当通道有读取事件时就会触发
    * @Date 2020/6/16
    **/
    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        ByteBuf buf= (ByteBuf) msg;
        System.out.println("收到服务端的消息："+buf.toString(CharsetUtil.UTF_8));
        System.out.println("服务器的地址："+ctx.channel().remoteAddress());
    }
}
